Improvement in churn-dasher



N, PUF-RS. PHOTO-LITHOGRAPHER. WASHINGTON. 0.6.

` tnitrd tapes strut tjijirr.

ISAAC BREWBAKER, OF FIN CASTLE, VIRGINIA, ASSIGNOR TO WILLIAM A,

' MCCUE.

Letters Patent No. 102,084, dated April 19, 1870.

IMPROVEMENT IN CHURN-DA SHE.

The Schedule referred to in these Letters Patent and making part of the same To all whom 'it may concern Beit known that I, ISAAC BnnwBAnnn, of Fin- Nature and Objects of the` Invention.

V My invention relates to providing an ordinary vertical barrel churn with a shaft or piston, Apassing vertically downward through the center of the top or cover, and having a perforated dasher placed on its lower extremity. This shaft or rod is provided with guides, in the present instance four being used, of simlar proportions and of such length as that, when the lower horizontal portions come in contact with the parts of the churn-cover adjacent to the aperture through which the shaft passes, the dashers or paddles on the lower parts of the arms will be prevented from coming in contact with the shaft-flasher or with each other when the shaft is raised. lwo of these guides project at right angles from and on opposite sides ofthe shaft to a distance from the vert-ical axis thereof equal to the semi-diameter of the churn-cover, from which point they incline downward and toward the shaft in the plane of that side of the shaft to which the guide is attached, to a proper distance, where they are bent horizontally toward and jointed at right angles to the shaft. lhc other two guides are similarly constructed, but are placed in a reverse position to the first mentioned.

, 'lhe device is provided with arms, corresponding in proportions and of the same uurnber as the guides. The horizontal axis of such arms is in the same plane as that of the shaft. They pass vertically downward through apertures in thechurn-cover, in which they are secured by journals or pivots, upon which they swing. The lower ends are furnished' with vertical perforated paddles or dashers, the upper with plates projecting at right angles from the vertical axis of the arm and on theside ofthe arm corresponding with the side of the shaftto which the guide is att-ached. This plate is provided with an aperture near its extremity,l

through which the guide works, the aperture being in the'same plane as the vertical plane ofthe guide it re-r ceives.

By these appliances, when the shaft is raised, two of the arm-paddles or dashers are extended and two brought into close proximity with each other. A reverse motion expands the paddles' last aforesaid, and brings the others in close proximity with the shaftdasher. Theoperation of churning is performed by a repetition of these movements of the shaft.

It is obvious that the operation of the lovers or arms Description. of the Accompanying Drawings.

Figure l is a perspective view ofthe invention, the` dotted lines showing the churn cover.

Figure 2 is a plan view ofthe under side of the churncover, the arms fore-shortened.

Figure 3 is a perspective view of shaft and guides, one-half ofthe churn-cover broken out, the dotted lines indicating the lever or arm.

General Description. mul Operation.

A is the shaft, provided at its lower extremity with the perforated dasher S, and passing vertically downward through the aperture E in the churn-cover B, which is secured in the mouth of the churn-barrel.

C C are guides afixed on opposite sides to the shaft A, wherefrom they project at right angles to a distance from the shaft equal to the semi-diameter of the cover B, and thence incline downward and toward the same side of the shaft to such point as that, when bent horizontally therefrom, vand joined to the shaft A on the same side as above attached, the paddles D D, working on the guides C O, will not come in contact with the dasher S when the shaft A, is forced down until its progress is checked by the lower parts of C C, bent as aforesaid, coming in contact witlrtlle cover B.

lhe guides O C are arrangedin reverse position to C C, but are joined to the shaft A in a similar manner on oppositersides. The guides are of like dimensions, and are aixed on oppositesides of -the shaft, both above and below, in the saine horizontal plane.

The arms D D are connected to the guides C C by the plates O O, which are provided with vertical pertorations to receive the guides. At the points x x they are secured in a slot in the churn-cover B by the journals X X, upon which they swing. Their lower extremities are provided with perforated paddles Z Z placed vertically thereon.

The arms D D are similarly constructed and arranged, bnt are attached to the guides C C', and move in a direction at right angles to that ofthe arms D D.

The churn-cover is secured in or above the mouth of the churn-barrel, the guides O C OC', andthe upper portion of theshaft A, and the same part of thev arms DV D D D being above the top of the cover B; the shaft is now forced down this brings the dasher S into the body of thc clun'n-barrel, at the same time expands the paddles Z Z, and retracts the paddles Z Z, all acting simultaneously upon the contents of the churn-barrel.

\Vhen the downward progress lof the sliaft A is l checked by the lower horizontal parts of the guides C C coming in contact with the churn-cover, a reverse motion is given to the shaft; this raises the dasher S, retracts the paddles Z Z, and expands the paddles Z Z', all acting simultaneously upon the contents of the churn-barrel.

'A repetition of the movements aforesaid agitates the milk or cream in such manner as to separate the oleaginous parts thereof from the caseous and serons matter, and produce butter.

The above mechanism may beused in the manufacf ture of ice-cream or other preparations, the produc'- t-ion of which is eected by agitation.v

C latms.

That I claim as my invention; and desire to secure that when it is forced down the lower horizontal parts of the guides will operate to prevent the arms D D or paddles Z Z coming in contact with the dasher S, substantially as shown and described.

3. The guides C C', so arranged upon the shaft A that when it is elevated the lower horizontal parts of the guides operate toprevent the arms D' D' or the paddles Z 'j from coming in contact with each other, substantially as shown and described.

4. An arm, D, provided with a vertical paddle, Z, on its lower extremity, and swingingor vibrating in the plane ofthe horizontal axis of a shaft, A, upon'a journal, X, at or about its longitudinal center of gravity, and connected at its upper extremity by a verticallyperforated plate, O, to and operated by an inclined guide, C, attached to a shaft, A, working in a directional aperture,-E, all arranged so that the motion ef the shaft causes the paddle to move' in a direction at rightaugles to that of the motion of the shaft.

In testimony that I claim the foregoing improvement in chnru-dashers, as above described, I have hereunto set my hand and seal this 24th day of February, 1870.

ISAAC BREWBAKER. [L s.] lVitnesses:

A. BREWBAKER, SAMUEL WrrEs. 

